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End-weight and End-focus

End-weight is the tendency to place long, complex phrases towards the end of a sentence when grammar allows a choice. It gives a short starting point before developing the details. Object shifting, there- or it-constructions and the passive can help, but each has its own grammatical requirements.

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End-weight: placing heavy elements at the end

The intuition: why word order affects readability

Every sentence places something first and something last. When the first element is short and clear and the last is long and detailed, the sentence is easy to follow: the listener first gets an anchor — who is doing what — and then takes in the complex part. With a heavy element at the beginning, the reader must hold a long, incomplete phrase in memory until the verb or main action arrives. End-weight addresses this difficulty.

Compare She gave to the museum the entire collection of paintings that her grandfather had acquired during his travels with The entire collection of paintings that her grandfather had acquired during his travels she gave to the museum. The second is possible with a strong contrast, but begins with a long object. The first names the agent, action and recipient earlier, then develops the description of the collection.

End-weight concerns sentence organisation: arranging short and long parts while preserving grammar, facts and the intended focus.

How to build it

light/short element + verb + ... + heavy/long element at the end

verb / V
—
A word for an action or state, such as work or be. The pattern determines its form.

She gave to the museum the entire collection of paintings that her grandfather had acquired during his travels.

She gave to the museum the entire collection of paintings that her grandfather had acquired during his travels.

The short she gave to the museum comes first; the heavy modified noun phrase comes at the end.

The entire collection of paintings that her grandfather had acquired during his travels she gave to the museum.

The entire collection of paintings that her grandfather had acquired during his travels she gave to the museum.

A fronted long object can serve a contrast, but demands more attention from the reader. In a neutral account, naming the main action earlier is easier to follow.

What makes an element ‘heavy’?

Weight involves both the length of a phrase and the complexity of its structure. Several modifiers, prepositional phrases or a subordinate clause often make it heavier: the report that the committee approved; a photograph of her grandfather at the harbour in 1958. Short pronouns and noun phrases are usually lighter.

Compare the parts of the particular sentence. What matters is how much longer or more complex one is than another, not whether it reaches a fixed word count. A photograph is much lighter than the photograph that won the national award last spring.

Pronouns such as it, them and this are usually short, even when they refer to important things. However, they can certainly occur at the end: I explained the situation to them. The restriction concerns specific shifts, not every sentence-final pronoun.

The committee reviewed the proposal.

The committee reviewed the proposal.

Both elements are light: short noun phrases without subordinate clauses. The order is natural without any special construction.

The committee reviewed the proposal that the regional office had submitted three weeks earlier after months of consultation.

The committee reviewed the proposal that the regional office had submitted three weeks earlier after months of consultation.

The subject and verb are still short, but the object is now heavy because of its subordinate clause and extra details. It therefore naturally stays at the end.

Direct rearrangement: a heavy object after a shorter phrase (heavy shift)

With a suitable verb pattern, a long direct object can follow a shorter prepositional phrase: She gave to the museum the entire collection… instead of She gave the entire collection… to the museum. The first order is called heavy shift here: moving a heavy object to the right. Choose it when the long phrase between the verb and recipient genuinely makes reading harder.

This works only with a heavy element. A light pronoun cannot be shifted in this way: I sent to you it sounds unnatural and is effectively unavailable in standard English. The pronoun must stay immediately after the verb: I sent it to you. Heavy shift is therefore a tool for long phrases, not a general rule for swapping an object and a prepositional phrase.

The tour guide showed to the visitors every room that had survived the fire.

The tour guide showed to the visitors every room that had survived the fire.

The heavy object every room that had survived the fire follows the shorter to the visitors.

I sent it to you yesterday.

I sent it to you yesterday.

The pronoun it stays immediately after the verb; a light pronoun cannot be moved to the end in place of a heavy phrase in this pattern.

There + a heavy subject

There can introduce a long phrase after the verb: There remain several unresolved questions about the new policy. This is not arbitrary movement of any subject: it requires an appropriate construction of existence, appearance or persistence and a suitable verb. In formal writing, make the verb agree with the number of the noun phrase.

There often introduces new information in a report or narrative, but an already known referent is not prohibited: There remains the question of cost. Choose the construction according to how the information is presented, not only whether the referent has been mentioned before.

There has been published a report is possible, but distinctly formal and rare. A report has been published or There is a new report on… is often more natural. To practise agreement, compare There remains one question and There remain several questions.

There has been published a comprehensive report on the long-term effects of climate change.

There has been published a comprehensive report on the long-term effects of climate change.

This rare formal order after there places the long description of the report at the end. In ordinary writing, A comprehensive report… has been published is also possible and often more natural.

There remain several unresolved questions about how the new policy will affect small local businesses.

There remain several unresolved questions about how the new policy will affect small local businesses.

Plural remain agrees with the heavy subject several unresolved questions..., not with there.

It and a long subordinate clause

With a suitable verb pattern, a long subordinate clause or infinitive is often placed at the end, with dummy it as the subject: It surprised me that she decided to resign after twenty years of dedicated service. That she decided to resign… surprised me is also grammatical and may emphasise the fact itself.

This movement is called extraposition. It often makes a long construction easier to process, but does not apply automatically to every sentence. A short or already known subject can naturally come first: To leave now would be a mistake.

It surprised me that she decided to resign after twenty years of dedicated service.

It surprised me that she decided to resign after twenty years of dedicated service.

Dummy it occupies the subject position; the heavy that-clause comes at the end.

It took the committee almost a year to agree on a single recommendation.

It took the committee almost a year to agree on a single recommendation.

It with a final to-infinitive clause follows the same weight principle in a different grammatical form.

Using the passive to place a heavy agent at the end

When the agent — whoever performed the action — is long and heavy, while the affected item is short and already known, the passive lets the short element remain the subject and places the heavy agent in a final by-phrase: Your bicycle was stolen by an old woman who was wearing a clown costume instead of An old woman who was wearing a clown costume stole your bicycle.

Several factors influence the choice of passive: the intended topic, the importance of the agent and the length of the parts. A short agent does not rule out the passive: if a request is under discussion, The request was approved by the manager can be appropriate. This section focuses specifically on a long final by-phrase.

Your bicycle was stolen by an old woman who was wearing a clown costume.

Your bicycle was stolen by an old woman who was wearing a clown costume.

The short, already known item your bicycle is the subject; the heavy agent is in the final by-phrase.

The proposal was rejected by a committee that had never before turned down a project from this department.

The proposal was rejected by a committee that had never before turned down a project from this department.

The same principle applies: short, known the proposal comes first, and the heavy description of the committee comes last.

Limits of the principle: when not to move elements

End-weight is a tendency, not a prohibition. When the difference in weight is small or both elements are short, ordinary SVO order remains natural without a special construction. She gave him the book needs neither heavy shift, there nor a passive: there is no heavy element to move.

In neutral I explained it to them, do not move unstressed it after to them: I explained to them it is not the ordinary pattern. But a pronoun following a preposition can end a sentence: I explained the situation to them. Its role and the whole construction determine its position.

Some languages allow a freer word order to create a similar effect simply by rearranging words. English does not allow such unrestricted movement: use one of the available constructions — heavy shift, there, it or the passive — or natural SVO order when it already works.

She gave him the book.

She gave him the book.

Both objects are short; no special construction is needed.

I explained the situation to them.

I explained the situation to them.

Them naturally comes last after to. This shows that end-weight does not prohibit sentence-final pronouns.

Applying end-weight in speech

In conversation, end-weight helps listeners follow the thought: first comes an anchor — who, what and what the topic is — then an expanded detail. This movement, ‘frame first, detail afterwards’, occurs naturally in storytelling, descriptions and news updates, even when speakers do not consciously plan it.

Read the sentence aloud and check whether the main action is easy to grasp. If a long opening phrase gets in the way, try a suitable there- or it-construction, a passive or a different object order. Not every long phrase needs to move: contrast or an established topic can justify an initial position.

There's a new manager starting on Monday who used to run the Berlin office.

There's a new manager starting on Monday who used to run the Berlin office.

This is a conversational version: there introduces a new manager, while the heavy detail about Berlin comes at the end.

It's kind of hard to explain why the whole team suddenly decided to change the schedule two days before the launch.

It's kind of hard to explain why the whole team suddenly decided to change the schedule two days before the launch.

Conversational it occupies the subject position while the substantial explanatory content unfolds at the end.

Common mistakes

Incorrect:I sent to you it yesterday.

Correct:I sent it to you yesterday.

In ordinary send it to you, the unstressed direct object it precedes the prepositional phrase to you. The heavy-object shift pattern does not apply here.

Incorrect:Has been published a comprehensive report on the long-term effects of climate change.

Correct:A comprehensive report on the long-term effects of climate change has been published.

A neutral declarative sentence needs a subject before has been published. The rare formal alternative beginning with There is also possible, but it is not the only correction.

Incorrect:There has been published several reports on this topic this year.

Correct:There have been published several reports on this topic this year.

The verb after there agrees with the actual, postposed subject — plural several reports — so have is needed, not has.

Incorrect:Surprised me that she decided to resign after twenty years of dedicated service.

Correct:It surprised me that she decided to resign after twenty years of dedicated service.

Without dummy it, the sentence has no subject; it-extraposition requires this dummy subject before the verb.

Incorrect:The proposal were rejected by a committee that had never before turned down a project from this department.

Correct:The proposal was rejected by a committee that had never before turned down a project from this department.

The passive verb agrees with singular the proposal, not with committee in the final by-phrase; was is needed, not were.

Incorrect:It took the committee almost a year agreeing on a single recommendation.

Correct:It took the committee almost a year to agree on a single recommendation.

After it took + a period of time, use a to-infinitive, to agree, not an -ing form. This is the standard form of the it-construction expressing duration.

Sources

End-focus: new or important information at the end

The idea: why the order of information matters

In conversation, some information is already known or clear from context, while other information answers the current question. An English sentence often begins with a familiar starting point and places the main new detail near the end. This tendency is called end-focus. However, an entire sentence can convey new information, and stress can highlight any appropriate element.

If everyone is discussing a report and wants to know its author, The report was written by a former employee conveniently keeps the report as the topic and names the author last. A former employee wrote the report can also answer the question about authorship, especially with stress on a former employee. An initial subject is not necessarily already known.

This differs from end-weight, which concerns the syntactic weight or length of a constituent. End-focus concerns information status, given versus new; end-weight concerns length and syntactic complexity. They often coincide because new information can also be long, but not always. A short new detail can naturally come last, while a long but familiar description need not be moved there.

How to build it

given/familiar information first → new/main information last (the focus position)

The report was written by a former employee.

The report was written by a former employee.

The familiar report is the initial subject; the new author appears in the final by-phrase.

A former employee wrote the report.

A former employee wrote the report.

This active version is correct. Stress on a former employee can highlight the new author even though that phrase comes first.

What counts as given or new?

Given information has already been mentioned, is obvious from the situation or belongs to shared background knowledge: pronouns such as it and they, definite noun phrases such as the meeting, or names of people already introduced. New information is introduced for the first time or supplies the particular detail being requested: a name, number, reason or place.

The conversation determines what is new. Maria called the office can answer either “Where did Maria call?” or “Who called the office?”. In the first case, stress naturally falls on the office; in the second, on Maria. Final position is only one way to focus information.

An assessment of end-focus therefore always depends on context: without it, we cannot say which sentence is better. The question is not simply which sentence is correct, but which naturally answers this particular question or continues this particular conversation.

Who called the office? — Maria called the office.

Who called the office? — Maria called the office.

Maria is the new answer to who. Stress on the name makes this short active answer natural; It was Maria who called the office would place additional emphasis on the choice of person.

Where did Maria call? — Maria called the office.

Where did Maria call? — Maria called the office.

The new information, the office, already comes naturally at the end; no restructuring is needed.

Using a passive to place new information last

When the patient, the entity affected by the action, is already known and the agent is new or central information, the passive lets you retain the familiar entity as subject and place the new agent in a final by-phrase: The bridge was repaired by a local company rather than A local company repaired the bridge when the bridge is already under discussion.

This is the same tool used for end-weight, but the criterion differs: here the agent’s newness or importance in the conversation matters, not its length. A short but new agent, such as by Maria, can come last just as naturally as a long one.

A passive is not always needed. When a familiar agent performs a new action or acts on a new object, the active is often natural. The passive can also maintain a topic or omit an unimportant agent; it is not limited to cases with a new agent.

How to build it

familiar entity affected by the action + was/were + past participle (V3) + by + focused agent

V3 / past participle
—
The third verb form: worked, gone, seen. Used after have/has or in the passive, for example; it is not always the same as V2.

The final decision was made by the board, not by a single manager.

The final decision was made by the board, not by a single manager.

The familiar decision is the subject; the new contrastive detail, the board rather than a manager, appears at the end through the passive.

Your call will be answered by the next available agent.

Your call will be answered by the next available agent.

This is a future passive: the familiar call comes first, and the new detail about who will answer comes last.

It-clefts to highlight a new or contrastive element

An it-cleft has the pattern It + was/is + [focused element] + who/that + the rest of the sentence. It does more than place new information last: it singles out one particular element, often contrasting it with alternatives. It was the youngest member of the team who spotted the error emphasises that the youngest member, rather than someone else, did so.

The main verb in an it-cleft agrees with dummy it and remains singular, was/is, even when the focused element is plural: It was the interns who found the mistake, not It were.

For people, who or that is usual in this pattern; for things, that is the main choice. That is not restricted to conversation. In It was the assistant which noticed the error, the person requires who or that.

How to build it

It + is/was + focused element + who/that + the rest of the sentence

It was the youngest member of the team who spotted the error.

It was the youngest member of the team who spotted the error.

The construction singles out the youngest team member as the agent. Context determines whether this was surprising.

It wasn't the weather that ruined the trip — it was the missed flight.

It wasn't the weather that ruined the trip — it was the missed flight.

The negative it-cleft first rejects the expected cause, then asserts the actual one; both parts use the same construction.

What-clefts to place the answer at the end

A what-cleft uses What + [familiar action/fact] + was/is + [new information]. It supplies the answer to an already established issue or action: in What caused the delay was a shortage of raw materials, the delay is already known, and the new cause appears last, after was.

The what-construction presents the answer after be. It can also express contrast: What we need is time, not money. It differs from an it-cleft in structure and presentation, not in being unable to express contrast.

The what-clause needs a linking verb before the new information: What surprised everyone the news is incomplete; it requires What surprised everyone WAS the news.

How to build it

What + [familiar action] + was/is + [new information]

What caused the delay was a shortage of raw materials.

What caused the delay was a shortage of raw materials.

The known delay appears in the what-clause; the new cause follows was.

What surprised the audience was the length of the applause.

What surprised the audience was the length of the applause.

The audience’s surprise is already clear from the situation; the new detail explains what caused it.

There to introduce existence or a new event

There helps introduce something’s existence, an event or a problem: There’s a strong chance the flight will be delayed. The main information usually follows be or another suitable verb, such as remain or exist.

In formal writing, the verb agrees in number with the noun phrase: There is one problem; There are two problems. Conversational there’s before a plural is common; in neutral edited writing, choose the agreeing form.

Indefinite phrases such as a problem, some options and several questions are very typical, but definite or already familiar entities are not prohibited. There remains the question of cost names a specific unresolved issue. There’s the manager waiting outside can also naturally draw attention to a familiar manager.

How to build it

There + appropriate form of be / remain / exist + noun phrase presented as existing or present

NP / noun phrase
—
A noun phrase: a noun with its dependent words, such as the new student; the pattern treats it as one group of words.
noun
—
A word naming a person, thing or idea: student, book, happiness.

There are still a few tickets left for tonight's show.

There are still a few tickets left for tonight's show.

There presents the availability of tickets; are agrees with plural tickets. The tickets may have been discussed before.

There has been a small change to the schedule.

There has been a small change to the schedule.

There + has been introduces a new event not previously mentioned.

Limits: when not to restructure, and how end-focus differs from end-weight

End-focus is a tendency, not a prohibition. When new information already naturally comes last in an ordinary subject–verb–object sentence, no special construction is needed. I just added some pepper requires neither a passive nor a cleft if the subject and action are known from a cooking context: the new detail, pepper, already comes last.

End-weight concerns the length and complexity of phrases; end-focus concerns the intended informational emphasis. These are different factors that operate alongside grammar, context and intonation. A short new detail can come last, while a long familiar subject remains first.

When these factors pull in different directions, no universal rule determines which always wins. Check whether readers recognise the topic, find the answer to the relevant question and follow the structure easily. Sometimes splitting a long sentence is best.

My uncle, who has been fascinated by old clocks his whole life, sold one.

My uncle, who has been fascinated by old clocks his whole life, sold one.

The long, familiar description of the uncle remains first; the short new information, sold one, comes last even though the heavier element precedes it.

I just added some pepper.

I just added some pepper.

Neither a passive nor a cleft is needed: ordinary word order already places the new detail last.

Using the principle: given-to-new links in text and dialogue

In connected writing or conversation, the principle can operate across several sentences: new information at the end of one often becomes the familiar topic of the next. A news report or narrative naturally picks up what was just introduced, using new information from the previous ending as the familiar starting point of a later sentence.

In dialogue, a listener who has just received new information often makes it the familiar topic of a response or follow-up question. I’ve helped organise a local festival, where festival is new, can naturally be followed by When did you help organise it?. It picks up the festival already mentioned.

To check your writing, identify the question your sentence answers. Is that answer clearly focused? If not, change the stress, order of presentation or construction. Leaving new information somewhere other than the end can also be natural.

The department received a grant to study air quality in three coastal cities. The cities were chosen because local hospitals had reported a rise in asthma cases.

The department received a grant to study air quality in three coastal cities. The cities were chosen because local hospitals had reported a rise in asthma cases.

The new information in the first sentence, three coastal cities, becomes familiar information, the cities, at the start of the second. The second sentence supplies the new reason for their selection.

A: I've helped organise a local festival. B: Oh really? When did you help organise it?

A: I've helped organise a local festival. B: Oh really? When did you help organise it?

The festival in A’s turn becomes familiar and is replaced by it. The question word when comes first: another reminder that the main information request need not occupy final position.

Common mistakes

Incorrect:It were the interns who found the mistake.

Correct:It was the interns who found the mistake.

In an it-cleft, the verb agrees with dummy it, giving singular was, not with the focused element even when that element is plural, as in the interns.

Incorrect:It was the assistant which noticed the error.

Correct:It was the assistant who noticed the error.

A person requires who or that in this pattern; that is also possible in neutral writing.

Incorrect:What surprised everyone the sudden change of plan.

Correct:What surprised everyone was the sudden change of plan.

The what-clause requires linking was/is before the new information; without it, the sentence lacks its main verb.

Incorrect:There was several complaints about the new policy this month.

Correct:There were several complaints about the new policy this month.

In this edited construction, the verb after there agrees with the following noun phrase. Several complaints is plural, so use were, not was.

Incorrect:The contract was wrote by the legal team late last night.

Correct:The contract was written by the legal team late last night.

The passive requires the past participle written, not the past simple form wrote.

Incorrect:What made the difference were her calm explanation.

Correct:What made the difference was her calm explanation.

This example identifies one explanatory answer, her calm explanation, so use was. Plural agreement can be possible with plural complements in other what-constructions.

Sources

It-Extraposition: Dummy *it* and the Heavy Clause at the End

Intuition: why English needs an empty subject

In an ordinary complete declarative sentence, English requires a subject. The subject can be a whole clause beginning with that or a to-infinitive. If it is long, the listener has to wait a long time for the main verb. It is often more convenient to begin with formal it and the verb, and put the detailed content later. This structure is called it-extraposition.

Compare: That she had voluntarily quit her well-paid job to start a small bakery surprised no one who knew her and It surprised no one who knew her that she had voluntarily quit her well-paid job to start a small bakery. Both versions are correct. The second reports the reaction more quickly; the first may be appropriate when her decision itself is already the topic of conversation.

This is one way to place a longer part closer to the end of the sentence. The choice also depends on the previous conversation: a long subject does not by itself make a sentence incorrect.

That she had voluntarily quit her well-paid job to start a small bakery surprised no one who knew her.

That she had voluntarily quit her well-paid job to start a small bakery surprised no one who knew her.

Grammatically correct, but the heavy that-clause subject makes the listener wait a long time for the verb surprised.

It surprised no one who knew her that she had voluntarily quit her well-paid job to start a small bakery.

It surprised no one who knew her that she had voluntarily quit her well-paid job to start a small bakery.

It surprised no one immediately states the reaction, while the long that clause explains its cause.

Two roles of *it*: empty (dummy) versus referring to something

In this construction, formal it does not name an object or person; it fills the subject position. The ordinary pronoun it, by contrast, refers to an object, event, or idea that is clear from the context.

There is another construction with a superficially similar it that should be distinguished from extraposition: the it-cleft, for example, “It was Maria who called.” Here, it is also non-referential, but it does not replace a heavy subject—it highlights one specific element (Maria) among possible alternatives, answering the question “who exactly?” It-extraposition moves an ENTIRE clause through dummy it; an it-cleft highlights ONE element through contrast. These are different tools, and confusing them is a typical advanced-level mistake.

A simple test: ask, “What does this it refer to?” If there is no answer and all the content is instead in the clause that follows, this is dummy it. If it can be paraphrased as “X itself, not someone else,” it is most likely an it-cleft.

I left my umbrella on the train, and it's probably still there.

I left my umbrella on the train, and it's probably still there.

Referential it = the umbrella; it points to a specific object mentioned earlier.

It's remarkable how quickly she picked up the new software.

It's remarkable how quickly she picked up the new software.

Dummy it: by itself, it refers to nothing; it simply holds the subject position for the clause how quickly she picked up....

It was the software update, not the hardware, that caused the crash.

It was the software update, not the hardware, that caused the crash.

This is an it-cleft: it highlights one specific element (the software update) in contrast with another possible one—not our construction.

*It* + adjective or noun + *that*: evaluating a message or action

A common pattern is: it + a form of be + an evaluative adjective + a that clause. The adjective expresses an evaluation of a message, possibility, or desired action. A noun phrase can play a similar role: it’s a pity that… — “it is unfortunate that…”. Not every that clause reports an established fact: It’s possible that… expresses only possibility.

Typical adjectives include important, essential, necessary, obvious, likely, possible, strange, and surprising. For an unknown answer to a question, use whether or a question word: It’s unclear whether… — “it is unclear if…”; It’s unclear who… — “it is unclear who…”. This has a different meaning from the probability judgment in It’s possible that….

The verb form inside the clause after evaluative adjectives such as essential/important/vital is often special—the subjunctive—and this is covered in a separate eighth section.

It is essential that all participants sign the form before the workshop begins.

It is essential that all participants sign the form before the workshop begins.

Sign expresses the necessary action here. With the plural subject all participants, this form is identical to the ordinary Present Simple; the clearer contrast with a singular subject appears in the section on the mandative subjunctive.

It's unlikely that the results will change significantly after a second review.

It's unlikely that the results will change significantly after a second review.

The ordinary inflected form (will change) is used here; this adjective does not belong to the group that requires the subjunctive.

It's still not clear whether the new policy will actually reduce costs.

It's still not clear whether the new policy will actually reduce costs.

Whether introduces an unknown “will it reduce costs?” question. The speaker evaluates how clear the answer to that question is.

*It* + adjective + *to*-infinitive: evaluating an action

An action can be evaluated through a to-infinitive: it + a form of be + adjective + to + base verb. If necessary, the participant can be named with for or of.

For names the performer of the action: It’s difficult for beginners to master this quickly. Of is used after an evaluation of a person’s behavior—kind, rude, wise, or silly: It was kind of you to help. This evaluates a specific action, not necessarily a permanent character trait.

Compare the general It’s difficult to learn this technique with the more specific It’s difficult for beginners to learn this technique quickly. For beginners specifies who finds it difficult.

It was very kind of you to bring in my mail while I was away.

It was very kind of you to bring in my mail while I was away.

Of you connects the positive evaluation with your action; to bring in my mail names the action itself.

It is difficult for beginners to master this technique quickly.

It is difficult for beginners to master this technique quickly.

For beginners names exactly who finds it difficult; the action (to master...) comes at the end.

It's always risky to promise a deadline before you've seen the full scope of the work.

It's always risky to promise a deadline before you've seen the full scope of the work.

This is a general judgment: there is no need to name a specific performer with for.

*It* + verb + *that* clause: reaction, impression, and reporting

The reaction verbs surprise, please, annoy, and worry take an object—the person who reacts: It surprised me that… Other patterns express an impression (It seems that…), an accidental coincidence (It happened that…), or a discovered result (It turned out that…). In It occurred to me that…, the prepositional phrase to me names the person to whom the idea occurred.

Passive reporting verbs such as be said, be believed, be suggested, and be reported are common in news and business styles: It has been suggested that…. The source is often not named, but it can be added with by if necessary. The passive form itself does not confirm that the report is true.

In all these cases, the verb agrees with dummy it as with an ordinary third-person singular subject (surprises, seems, has been suggested), not with the person or number of whatever the clause is about.

It has been suggested that further trials are necessary before approval.

It has been suggested that further trials are necessary before approval.

The passive form reports a suggestion; its source is not named here.

It surprised nobody that the announcement leaked before the official press release.

It surprised nobody that the announcement leaked before the official press release.

The reaction verb (surprised) has the direct object nobody; the clause is the reason for the reaction itself.

It has since emerged that the two companies had been negotiating for months.

It has since emerged that the two companies had been negotiating for months.

It has emerged that… means “it became known that…”. Formal it does not name a separate object.

*It takes* + *to*-infinitive: time or effort

A separate productive pattern is it + take (+ person) (+ time/quality) + to-infinitive: it measures how much time, effort, or a particular quality an action requires. The person can be named immediately after took (“it took her two hours”) or later in the sentence with for, when it is more natural to mention the time first: “it took two hours for her to finish”.

The same construction measures not only time but also an abstract quality: courage, patience, skill, or nerve. “It takes considerable courage to speak out against injustice” has the same framework; only courage replaces time.

A common mistake is using an -ing form instead of a to-infinitive after this pattern; this is discussed in more detail in the section on common mistakes.

It takes considerable courage to speak out against injustice.

It takes considerable courage to speak out against injustice.

An abstract quality (courage) replaces time—the same it takes + to-infinitive pattern.

It took the new assistant almost a month to learn all the software the team uses.

It took the new assistant almost a month to learn all the software the team uses.

The person (the new assistant) comes immediately after took, the time comes next, and the action appears at the end as a to-infinitive.

It only took a week for the new system to go fully live.

It only took a week for the new system to go fully live.

For the new system names the participant in the situation after the duration is stated. This participant can be a system or object, not only a person.

The *-ing* form after *worth, no use,* and *no good*

A to-infinitive is not always needed after it. Remember these common patterns with an -ing form: it’s worth doing — “doing it is worthwhile”; it’s no use doing and it’s no good doing — “doing it is pointless.” Choose the form according to the word or expression that comes before it.

With some evaluative adjectives, both forms are possible: It’s great living here and It’s great to live here. The first often evaluates the speaker’s experience of living here; the second can also express a general evaluation. In the appropriate context, the meanings are very similar.

When an action is named with a verb after worth, use the -ing form: It’s worth checking. The version It’s worth to check is incorrect in this pattern.

It's worth checking the figures one more time before you send them.

It's worth checking the figures one more time before you send them.

Worth + gerund (checking) is a fixed requirement; a to-infinitive is not possible here.

It's no use complaining about the weather — just bring a coat.

It's no use complaining about the weather — just bring a coat.

In the usual pattern it’s no use doing, the action is named by an -ing form—complaining.

It's great living so close to the station — I never worry about missing a train.

It's great living so close to the station — I never worry about missing a train.

With an evaluation using great, both living and to live are natural here.

The base form after a requirement or recommendation

After essential, important, vital, and necessary, and after the verbs suggest, recommend, and insist when they express a requirement or recommendation, the base form of the verb can be used in the that clause. It does not change according to the person: It is essential that every participant sign the form. This is the mandative subjunctive. With every participant, the ordinary Present Simple would be signs, so the difference is visible.

A natural alternative, especially in British English, is should + the base form: It was agreed that the launch should be postponed by a week. Both the base form and the should pattern are suitable for formal writing.

Ordinary inflected forms also occur in standard usage, especially in British English: It is important that everyone arrives on time. Not every sentence of this kind is incorrect. The base form clearly conveys a requirement; sometimes the inflected form can also be understood as reporting a fact. Choose the pattern according to meaning and style.

It is essential that every participant sign the form before the workshop begins.

It is essential that every participant sign the form before the workshop begins.

Every participant is singular, but this pattern requires the base form sign without -s. All participants would be plural, with which sign is identical to the ordinary inflected form.

It is vital that the committee review the proposal again before the vote.

It is vital that the committee review the proposal again before the vote.

Review, not reviews—the same bare form after vital that.

It was agreed that the launch should be postponed by a week.

It was agreed that the launch should be postponed by a week.

Should + the base form is a British alternative to the bare subjunctive form and is equally standard.

Limits of the rule and transfer to speech

A short subject naturally comes at the beginning: Traveling is fun; Honesty matters. The version It’s fun traveling is also natural, especially in conversation. It-extraposition is a choice of sentence structure, not a required replacement for every subject that names an action.

Distinguish this structure from an it-cleft (It was Maria who called—it highlights Maria) and from He is believed to be innocent. The latter is close in meaning to It is believed that he is innocent, but the subject is he—the person being reported about.

If a long initial part makes the sentence harder to process, try a version with it. Then compare it with the previous context: what does the reader already know, and what should receive the focus?

Honesty matters more than people admit.

Honesty matters more than people admit.

The short subject (honesty) is not heavy and does not need any it construction.

It matters more than people admit that leaders are honest with their teams, not just careful with their words.

It matters more than people admit that leaders are honest with their teams, not just careful with their words.

In this structure, formal it occupies the subject position, while the longer that clause provides the content.

Common mistakes

Incorrect:Is essential that all participants sign the form before the workshop begins.

Correct:It is essential that all participants sign the form before the workshop begins.

In this complete declarative sentence, an expressed subject it is required. Leaving it out does not match the standard complete form of the sentence.

Incorrect:It has been suggested to further trials are necessary before approval.

Correct:It has been suggested that further trials are necessary before approval.

Further trials are necessary… has its own subject and an inflected verb. Here, this clause is introduced by that. The infinitival to cannot stand before such a clause.

Incorrect:It don't matter what people think about the decision.

Correct:It doesn't matter what people think about the decision.

Dummy it agrees like an ordinary third-person singular subject: the verb needs an -s ending or does, not a form used with I/you/we/they.

Incorrect:It is important for that everyone arrives on time.

Correct:It is important that everyone arrives on time.

In the infinitive pattern, for someone to arrive is possible. The extra for is not needed before the clause that everyone arrives.

Incorrect:It took her two hours finishing the report.

Correct:It took her two hours to finish the report.

After it took + person + time, a to-infinitive (to finish) always follows, not an -ing form; this is a fixed part of the construction.

Incorrect:It's worth to double-check these numbers before you send them.

Correct:It's worth double-checking these numbers before you send them.

Worth requires a gerund (double-checking), not a to-infinitive. This is one of the few constructions in which the choice between -ing and to is fixed rather than free.

Sources
Practise with Vocairo